Changeset 3074 for GTP

Timestamp:

10/27/08 03:26:48 (16 years ago)

Author:

mattausch

Message:

included vbo support for dynamic objects

Location:

GTP/trunk/App/Demos/Vis/FriendlyCulling/src

Files:

• Bvh.cpp (modified) (14 diffs)
• Bvh.h (modified) (2 diffs)
• BvhLoader.cpp (modified) (2 diffs)
• RenderState.cpp (modified) (2 diffs)
• RenderTraverser.cpp (modified) (1 diff)
• Shape.cpp (modified) (1 diff)
• Transform3.cpp (modified) (1 diff)
• chcdemo.cpp (modified) (7 diffs)

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Bvh.cpp

@@ -207 +207 @@
 Bvh::~Bvh() 
 {
-        if (mVertices) delete [] mVertices; 
-        if (mIndices) delete [] mIndices;
-        if (mTestIndices) delete [] mTestIndices;
-        if (mGeometry) delete [] mGeometry;
+        DEL_ARRAY_PTR(mVertices);
+        DEL_ARRAY_PTR(mIndices);
+        DEL_ARRAY_PTR(mTestIndices);
+        DEL_ARRAY_PTR(mGeometry);
 
         if (mRoot) delete mRoot;
@@ -220 +220 @@
 void Bvh::Init()
 {
-        //mStaticRoot = NULL;
+        mStaticRoot = NULL;
         mDynamicRoot = NULL;
         mRoot = NULL;
@@ -435 +435 @@
 
 
-void Bvh::InitFrame(Camera *cam)
+void Bvh::InitFrame(Camera *cam, RenderState *state)
 {
         // = 0011 1111 which means that at the beginning, all six planes have to frustum culled
@@ -452 +452 @@
         {
                 UpdateDynamicBranch(mDynamicRoot);
+                UpdateDynamicBounds(state);
         }
 }
@@ -532 +533 @@
         ///////////////////
         //-- for the first time we come here => create vbo and indices
-/*
+
         if (!mIndices)
         {       
@@ -544 +545 @@
                 PrepareVertices();
         }
-*/
+
         ///////////////
 
         int numNodes = 0;
-/*
+
         BvhNodeContainer::const_iterator nit, nit_end = nodes.end();
 
@@ -563 +564 @@
                 numNodes += node->mNumTestNodes;
         }
-*/
+
         return numNodes;
 }
@@ -660 +661 @@
         // collect all nodes
         BvhNodeContainer nodes;
-        CollectNodes(mRoot, nodes);
-
-        // assign ids to all nodes of the "regular" hierarchy
+        //CollectNodes(mRoot, nodes);
+        // first collect dynamic nodes so we make sure that they are in the beginning
+        CollectNodes(mDynamicRoot, nodes);
+        // then collect static nodes
+        CollectNodes(mStaticRoot, nodes);
+        // also add root
+        nodes.push_back(mRoot);
+
+        // assign ids to all nodes of the hierarchy
         int i = 0;
         BvhNodeContainer::const_iterator lit, lit_end = nodes.end();
@@ -679 +686 @@
 
         nodes.reserve(GetNumNodes());
-        CollectNodes(mRoot, nodes);
+        // first collect dynamic nodes so we make sure that they are in the beginning
+        CollectNodes(mDynamicRoot, nodes);
+        // then collect static nodes
+        CollectNodes(mStaticRoot, nodes);
+        // also add root
+        nodes.push_back(mRoot);
 
         const unsigned int bufferSize = 8 * (int)nodes.size();
@@ -704 +716 @@
                             bufferSize * sizeof(Vector3), 
                             mVertices, 
-                                        GL_STATIC_DRAW_ARB);
+                                        //GL_STATIC_DRAW_ARB);
+                                        GL_DYNAMIC_DRAW_ARB);
 
         glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
 
         // data handled by graphics driver from now on
-        DEL_PTR(mVertices);
+        DEL_ARRAY_PTR(mVertices);
 
         cout << "******** created vbos for tighter bounds *********" << endl;
+}
+
+
+void Bvh::UpdateDynamicBounds(RenderState *state)
+{
+        // vbos not created yet
+        if (mVboId == -1) return;
+
+        // collect all nodes
+        static BvhNodeContainer nodes;
+        nodes.clear();
+        //nodes.reserve(GetNumNodes());
+        CollectNodes(mDynamicRoot, nodes);
+
+        const unsigned int bufferSize = 8 * (int)nodes.size();
+        
+        if (!mVertices) mVertices = new Vector3[bufferSize];
+        
+        int i = 0;
+        
+        // store bounding box vertices
+        BvhNodeContainer::const_iterator lit, lit_end = nodes.end();
+
+        for (lit = nodes.begin(); lit != lit_end; ++ lit, i += 8)
+        {
+                BvhNode *node = *lit;
+
+                for (int j = 0; j < 8; ++ j)
+                        (static_cast<Vector3 *>(mVertices))[node->GetId() * 8 + j] = node->GetBox().GetVertex(j);
+        }
+        
+        if (state->GetCurrentVboId() != mVboId)
+        {
+                glBindBufferARB(GL_ARRAY_BUFFER_ARB, mVboId);
+                // set the vertex pointer to the vertex buffer
+                glVertexPointer(3, GL_FLOAT, 0, (char *)NULL);  
+
+                state->SetCurrentVboId(mVboId);
+        }
+
+        glBufferSubDataARB(GL_ARRAY_BUFFER_ARB, 0,
+                                           bufferSize * sizeof(Vector3), 
+                                           mVertices);
+
+        glBindBufferARB(GL_ARRAY_BUFFER_ARB, 0);
 }
 
@@ -1061 +1119 @@
         CreateRoot();
 
-        ComputeIds();
         ComputeMaxDepthForVirtualLeaves();
         // set virtual leaves for specified number of triangles
@@ -1067 +1124 @@
         /// for each node compute the number of leaves under this node
         UpdateNumLeaves(mRoot);
+        // compute new ids
+        ComputeIds();
         // specify bounds for occlusion tests
         RecomputeBounds();
+
+        mBox = mRoot->GetBox();
 
         // compute and print stats
@@ -1267 +1328 @@
         if (TerminationCriteriaMet(leaf))
         {
-                leaf->mIsVirtualLeaf = true;
-                leaf->mIsMaxDepthForVirtualLeaf = true;
                 //cout << "leaf constructed:" << leaf->mBox << " " << leaf->mFirst << " " << leaf->mLast << endl;
                 return leaf;
@@ -1412 +1471 @@
         // create new root
         mRoot = new BvhInterior(NULL);
-        
+
         // the separation is a purely logical one
         // the bounding boxes of the child nodes are 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Bvh.h

@@ -586 +586 @@
         /** Sets frame dependent values
         */
-        void InitFrame(Camera *camera);
+        void InitFrame(Camera *camera, RenderState *state);
         /** Stores the orthogonal distance from the viewpoint to a point on the node.
                 We choose the the nearest bounding box vertex . 
@@ -738 +738 @@
 
         void CreateRoot();
+
+        void UpdateDynamicBounds(RenderState *state);
 
 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/BvhLoader.cpp

@@ -78 +78 @@
 
         bvh->mStaticRoot = root;
+        // we have at least the root, the static and the dynamic branch
         bvh->mNumNodes = 3;
 
@@ -107 +108 @@
         }
 
-
-        ////////////
+        ///////////
         //-- create dynamic part of the hierarchy
 
         bvh->CreateDynamicBranch();
 
-        
         ///////////
         //-- post process nodes
 
-        /// this function must be called once after creation
         bvh->PostProcess();
-
 
         cout << "... finished loading " << bvh->mNumNodes << " nodes" << endl;

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/RenderState.cpp

@@ -311 +311 @@
                 }
         }
-                        ShaderManager::GetSingleton()->DisableFragmentProfile();
-                        ShaderManager::GetSingleton()->DisableVertexProfile();
-
 }
 
@@ -341 +338 @@
 
 
-}
+
+}

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/RenderTraverser.cpp

@@ -150 +150 @@
         ++ mFrameId;
 
-        mBvh->InitFrame(mCamera);
+        mBvh->InitFrame(mCamera, mRenderState);
 
         mStats.Reset();

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Shape.cpp

@@ -26 +26 @@
 void Shape::Render(RenderState *state)
 {
-        //if (mMaterial) mMaterial->Render(state);
-        //mDepthWriteEnabled = true;
-glDepthMask(GL_TRUE);   glDepthFunc(GL_LESS);
-glEnable(GL_DEPTH_TEST);
+        if (mMaterial) mMaterial->Render(state);
+        
         mGeometry->Render(state);
 }

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/Transform3.cpp

@@ -40 +40 @@
         mIsIdentity = false;
         mMatrix = mMatrix * trafo;
+        //mMatrix = trafo * mMatrix;
 }
 

GTP/trunk/App/Demos/Vis/FriendlyCulling/src/chcdemo.cpp

@@ -53 +53 @@
 #include "SkyPreetham.h"
 #include "Texture.h"
-//#include "EntityMerger.h"
 #include "ShaderManager.h"
 
@@ -184 +183 @@
 
 bool useOptimization = false;
-//bool useTightBounds = true;
-bool useTightBounds = false;
+bool useTightBounds = true;
 bool useRenderQueue = true;
 bool useMultiQueries = true;
@@ -453 +451 @@
         LoadModel("city.dem", sceneEntities);
 
-/*
+
         //////////
         //-- load some dynamic stuff
@@ -464 +462 @@
         buddha->GetTransform()->SetMatrix(transl);
 
-        for (int i = 0; i < 10; ++ i)
+        /*for (int i = 0; i < 10; ++ i)
         {
                 SceneEntity *ent = new SceneEntity(*buddha);
@@ -471 +469 @@
                 Vector3 offs = Vector3::ZERO();
 
-                offs.x = RandomValue(.0f, 150.0f);
-                offs.y = RandomValue(.0f, 150.0f);
+                offs.x = RandomValue(.0f, 50.0f);
+                offs.y = RandomValue(.0f, 50.0f);
 
                 transl = TranslationMatrix(sceneCenter + offs);
@@ -479 +477 @@
                 ent->SetTransform(transform);
                 dynamicObjects.push_back(ent);
-        }
-
-*/
+        }*/
+
+
         ///////////
         //-- load the associated static bvh
@@ -870 +868 @@
 void MainLoop() 
 {       
+        Vector3 offs = Vector3::ZERO();
+        //offs.x = RandomValue(-.1f, .1f);
+        //offs.y = RandomValue(-.1f, .1f);
+        offs.x = RandomValue(.0f, .01f);
+        offs.y = RandomValue(.0f, .01f);
+
+        Matrix4x4 mat = TranslationMatrix(offs);
+                
+        buddha->GetTransform()->MultMatrix(mat);
+
         Vector3 oldPos = camera->GetPosition();